summaryrefslogtreecommitdiff
path: root/arch/m32r/include/asm/switch_to.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m32r/include/asm/switch_to.h')
-rw-r--r--arch/m32r/include/asm/switch_to.h51
1 files changed, 0 insertions, 51 deletions
diff --git a/arch/m32r/include/asm/switch_to.h b/arch/m32r/include/asm/switch_to.h
deleted file mode 100644
index 4b262f7a8fe9..000000000000
--- a/arch/m32r/include/asm/switch_to.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 Hiroyuki Kondo, Hirokazu Takata, and Hitoshi Yamamoto
- * Copyright (C) 2004, 2006 Hirokazu Takata <takata at linux-m32r.org>
- */
-#ifndef _ASM_M32R_SWITCH_TO_H
-#define _ASM_M32R_SWITCH_TO_H
-
-/*
- * switch_to(prev, next) should switch from task `prev' to `next'
- * `prev' will never be the same as `next'.
- *
- * `next' and `prev' should be struct task_struct, but it isn't always defined
- */
-
-#if defined(CONFIG_FRAME_POINTER) || \
- !defined(CONFIG_SCHED_OMIT_FRAME_POINTER)
-#define M32R_PUSH_FP " push fp\n"
-#define M32R_POP_FP " pop fp\n"
-#else
-#define M32R_PUSH_FP ""
-#define M32R_POP_FP ""
-#endif
-
-#define switch_to(prev, next, last) do { \
- __asm__ __volatile__ ( \
- " seth lr, #high(1f) \n" \
- " or3 lr, lr, #low(1f) \n" \
- " st lr, @%4 ; store old LR \n" \
- " ld lr, @%5 ; load new LR \n" \
- M32R_PUSH_FP \
- " st sp, @%2 ; store old SP \n" \
- " ld sp, @%3 ; load new SP \n" \
- " push %1 ; store `prev' on new stack \n" \
- " jmp lr \n" \
- " .fillinsn \n" \
- "1: \n" \
- " pop %0 ; restore `__last' from new stack \n" \
- M32R_POP_FP \
- : "=r" (last) \
- : "0" (prev), \
- "r" (&(prev->thread.sp)), "r" (&(next->thread.sp)), \
- "r" (&(prev->thread.lr)), "r" (&(next->thread.lr)) \
- : "memory", "lr" \
- ); \
-} while(0)
-
-#endif /* _ASM_M32R_SWITCH_TO_H */